Back to Search
Start Over
Shake-Table Tests and Numerical Analysis of Steel Frames with Self-Centering Viscous-Hysteretic Devices under the Mainshock–Aftershock Sequences.
- Source :
-
Journal of Structural Engineering . Apr2022, Vol. 148 Issue 4, p1-19. 19p. - Publication Year :
- 2022
-
Abstract
- Shake-table tests, subjected to mainshock–aftershock sequences, were conducted on a 1/3-scaled 3-story steel frame equipped with self-centering viscous-hysteretic devices (SC-VHDs) and its primary frame to investigate the effect of the aftershock on seismic performance. It was found that the SC-VHD can effectively reduce 30%–50% of the peak drift and 50%–80% of the residual drift, respectively. Additionally, the peak and residual drifts of the 3-story primary frame under the mainshock–aftershock sequences were more than those under the mainshock-only sequences, while the peak and residual drifts of the 3-story SC-VHD frame under the mainshock-only and mainshock–aftershock sequences were basically the same. A numerical simulation method for the SC-VHD frame was further developed and validated, based on which 6-, 9-, and 12-story SC-VHD frames were analyzed to investigate the seismic performance of medium- high-rise SC-VHD frames. Both shake-table tests and numerical analysis indicate that the peak and residual drifts of the 3-, 6-, 9-, and 12-story SC-VHD frames can meet the design objective under the mainshock–aftershock sequences. [ABSTRACT FROM AUTHOR]
- Subjects :
- *STEEL framing
*NUMERICAL analysis
*STEEL analysis
Subjects
Details
- Language :
- English
- ISSN :
- 07339445
- Volume :
- 148
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Structural Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 155285561
- Full Text :
- https://doi.org/10.1061/(ASCE)ST.1943-541X.0003318